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7. Assemble the spring assembly. Install rod assembly (47), retainer (45), spring (46) and guide bushing (44) .
Illustration 7
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8. Attach Tool (A) to spring assembly (43), as shown. Slowly compress spring assembly (43). Use Tool (A) to install the spring assembly on the shaft as a unit.
9. Repeat Steps 7 and 8 for the spring assembly on the other side of the suspension arm.
Illustration 8
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Illustration 9
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Note: Apply 5N-5561 Lubrication Compound on the roller shafts before installation.
10. Install retaining rings (42) and (38), washers (41), (39) and (37), and rollers(40). Install roller assembly (35) on each side of suspension arm (36). Make sure that the rollersdo not bind.
Illustration 10
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11. Install two springs (26) and plastic bearings(32) on height adjustment shaft (34). Install retaining ring (33) on each side of height adjustment shaft (34) .
11
12. Install nut (28), weight adjustment screw (29), two races, the thrust bearing, weight adjustment knob (31) and pin (30). Turn weight adjustment knob (25) in the positive (+) direction in order to apply tension to springs (26). Install pin (27) in the end of weight adjustment screw (29) .
Illustration 12
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Note: During removal of the wire cable, the wire cable will be cut. The wire cable will not be reusable. A new wire cable must be installed during assembly of the mechanical suspension.
13. Install variable damper (20), retainer (24), two bearings(25), bracket (23) and arm (22). Install newadjustable bracket (21). Install the pin in arm (22). Install a new wire cable in the variable damper. Connect wire cable (16) to bracket (23) .
Note: Adjustable bracket (21) must be replaced. The bracket will be damaged during the removal procedure.
Illustration
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Illustration 13
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Note: Apply 5N-5561 Lubrication Compound on the roller shafts before installation.
14. Install four rollers (19), two tether belts (18) and four bearings (17). Make sure that the rollers do not bind.
Illustration 14
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15. Install scissor assembly (13) on upper housing (14) .
Illustration 15 g00288364
16. Slide wire cable (16) into upper housing (14). Install the upper shaft assembly. Install locknut (15) on the upper shaft assembly.
Illustration 16
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17. Install the tie-wraps in order to hold the adjustable cable to upper housing (14). Tilt the lower housing forward and slide the lower housing onto scissor assembly (13) and onto upper housing (14) .
Illustration 17
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18. Install the lower shaft assembly. Install locknut (11) .
Illustration 18
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19. Install ball (9), spring (8) and knob (7). Install pin (10) .
Illustration 19
20. Install two retainers (1) and boot (6) .
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21. Install two brackets(4), the locknuts on two brackets (4), the washers, two bolts(5) and four bolts (2). Tighten the bolts to a torque of 25 ± 6 N·m (18 ± 4 lb ft). Install four slider blocks (3) .
Copyright 1993 - 2021 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Wed May 19 21:57:58 UTC+0530 2021
Product: WHEEL LOADER
Model: 994F WHEEL LOADER 442
Configuration: 994F Wheel Loader 44200001-UP (MACHINE) POWERED BY 3516 Engine
Disassembly and Assembly
Comfort Series Seat For Caterpillar Machines
Media Number -RENR2165-12
Date -01/10/2013
Mechanical Suspension With Variable Damper - Disassemble
SMCS - 7324-015-ME
Disassembly Procedure
1
Illustration 1
Illustration 2
1. Remove four slider blocks (3). Remove four bolts (2), two bolts (5), the washers, and the locknuts from two brackets(4) .
2. Remove boot (6) and two retainers(1). Use a hammer and a punch to remove pin (10). Remove knob (7), spring (8) and ball (9) .
Illustration 3
3. Remove locknut (11). Remove the lower shaft assembly.
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Illustration 4
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4. Lift up lower housing (12). Tilt the lower housing forward in order to remove the lower housing from scissor assembly (13) and from upper housing (14). Remove the tie-wrapsthat are holding the adjustable cable to upper housing (14) .
Illustration 5
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5. Remove locknut (15) from the upper shaft assembly. Remove the upper shaft assembly. Slide wire cable (16) from upper housing (14) .
Illustration 6
6. Lift up scissor assembly (13). Tilt the scissor assembly forward and remove the scissor assembly from upper housing (14) .
Illustration 7
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7. Remove two tether belts(18), four rollers (19) and four bearings (17) from scissor assembly (13) .
Illustration 8
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Note: During removal of the wire cable, the wire cable will be cut. The wire cable will not be reusable. A new wire cable must be installed during assembly of the mechanical suspension.
8. Cut wire cable (16) at the point of connection to bracket (23). Remove the wire cable from the variable damper. Use a hammer and a punch to remove the pin from arm (22). Remove adjustable bracket (21). Remove arm (22), bracket (23), two bearings (25), retainer (24) and variable damper (20) .
Note: Adjustable bracket (21) must be replaced. The bracket will be damaged during the removal procedure.
Illustration 9
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9. Remove pin (27) from the end of weight adjustment screw(29). Turn weight adjustment knob (31) in the negative (-) direction in order to relieve the tension on springs(26). Remove pin (30), weight adjustment knob (31), the thrust bearing, two races, weight adjustment screw (29) and nut (28) .
Illustration 10
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10. Remove retaining ring (33) from each side of height adjustment shaft (34). Remove two springs (26) and plastic bearings (32) from height adjustment shaft (34) .
Illustration 11
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Illustration 12
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11. Remove roller assembly (35) from each side of suspension arm (36). Remove retaining rings (42) and (38), washers(41), (39) and (37), and rollers (40) .
Illustration 13
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Illustration 14
12. Attach Tool (A) to spring assembly (43), as shown. Use Tool (A) to remove the spring assembly from the shaft asa unit.
13. Use Tool (A) to slowly release the compression on spring assembly (43). Disassemble spring assembly (43). Remove guide bushing (44), spring (46), retainer (45) and rod assembly (47) .
14. Repeat Steps 12 and 13 for the spring assembly on the other side of the suspension arm.
Illustration 15
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15. Remove two spacers (48) from shaft (34). Remove the shaft and suspension arm (36) .
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Illustration 16
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16. Remove retaining rings (50) and (51). Use a hammer and a punch to remove the pins. Remove cam (49) from suspension arm (36) .
Illustration 17
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17. Remove retaining ring (57). Use a hammer and a punch to remove the pin. Remove roller (54). Remove retaining ring (52). Use a hammer and a punch to remove the pin. Remove roller (53) and two spacers. Remove spring (56) and arm assembly (55) .
Illustration 18
18. Remove the key for the height adjustment lever. (The key is not shown.) Remove handle (58) and height adjustment lever (59) .
Illustration 19
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19. Remove pin (62) from the bracket. Cut tie-wraps (60). Remove indicator band (61) .
Copyright 1993 - 2021 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Wed May 19 21:57:40 UTC+0530 2021
Product: WHEEL LOADER
Model: 994F WHEEL LOADER 442
Configuration: 994F Wheel Loader 44200001-UP (MACHINE) POWERED BY 3516 Engine
Disassembly and Assembly
Comfort Series Seat For Caterpillar Machines
Media Number -RENR2165-12
Updated -31/10/2013 i00645135
Mechanical Suspension With Fixed Damper - Assemble
SMCS - 7324-016-ME
Assembly Procedure
1. Check the condition of all parts of the mechanical suspension. If any of the parts are worn or damaged, install new parts. Illustration 1
2. Install two brackets(58) on upper housing (7). Install the washers, four bolts (60), two bolts (59), and the locknuts on two brackets (58). Tighten the boltsto a torque of 25 ± 6 N·m (18 ± 4 lb ft).
Illustration 2
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3. Install indicator band (56) and new tie-wraps(55). Install pin (57) in the bracket.
Illustration 3
4. Install height adjustment lever (54) and handle (53). Install the key for the height adjustment lever.
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Illustration 4
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Note: Apply 5N-5561 Lubrication Compound on the roller shafts before installation.
5. Install arm assembly (51) and spring (52). Install roller (48), two spacers, and the pin. Install retaining ring (47). Install roller (49) and the pin. Install retaining ring (50). Make sure that the rollers do not bind.
Illustration 5
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6. Install cam (44) in suspension arm (29). Install retaining rings (45) and (46) and the pins.
Illustration 6
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7. Install the shaft and suspension arm (29). Install spacers(42) and (43) on shaft (28).
Illustration 7
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8. Install rod assembly (41), retainer (39), spring (40) and guide bushing (38). Assemble spring assembly (37) .
Illustration 8
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9. Attach Tool (A) to spring assembly (37), as shown. Slowly compress spring assembly (37). Use Tool (A) to install the spring assembly on the shaft.
10. Repeat Steps 8 and 9 for the spring assembly on the other side of the suspension arm.
Illustration 9
g00288348
Illustration 10
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Note: Apply 5N-5561 Lubrication Compound on the roller shafts before installation.
11. Install retaining rings (32) and (36), washers (31), (33) and (35), and rollers(34). Install roller assembly (30) on each side of suspension arm (29). Make sure that the rollersdo not bind.
Illustration 11
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12. Install two springs (20) and plastic bearings(26) on height adjustment shaft (28). Install retaining ring (27) on each side of height adjustment shaft (28) .
Illustration 12
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13. Install nut (23), weight adjustment screw (22), two races, the thrust bearing, weight adjustment knob (25) and pin (24). Turn weight adjustment knob (25) in the positive (+) direction in order to apply tension to springs (20). Install pin (21) in the end of weight adjustment screw (22) .
Illustration 13 g00288343
14. Install damper (18), two bearings (15) and (19), and retainer (17). Install four bearings (16) .
Illustration 14
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Note: Apply 5N-5561 Lubrication Compound on the roller shafts before installation.
15. Install four rollers (14) and two tether belts(13). Make sure that the rollers do not bind.
Illustration 15
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16. Install scissor assembly (8) on lower housing (11). Slide the scissor assembly into slider track (12) .
Illustration 16
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Illustration 17
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17. Install lower shaft assembly (10) in lower housing (11). Install locknut (9) on lower shaft assembly (10) .
Illustration 18
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18. Tip upper housing (7) forward and slide the upper housing onto scissor assembly (8) .
Illustration 19
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Illustration 20
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19. Install upper shaft assembly (6) in upper housing (7). Install locknut (5) .
Illustration 21
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